Allow scoping rules through subninja

Ninja didn't support scoping rules through subninja and assumed
a unique rule name in the whole namespace. With this change, this
behavior is changed to allow scoping rules. Two rules can have the
same name if they belong to two different scopes. However, two
rules can NOT have the same name in the same scope.

1 files changed, 1 insertions, 7 deletions

diff --git a/src/state.h b/src/state.h
index 311d740..db0e3aa 100644
--- a/src/state.h
+++ b/src/state.h
@@ -79,7 +79,7 @@ struct Pool {
   DelayedEdges delayed_;
 };
 
-/// Global state (file status, loaded rules) for a single run.
+/// Global state (file status) for a single run.
 struct State {
   static Pool kDefaultPool;
   static Pool kConsolePool;
@@ -87,9 +87,6 @@ struct State {
 
   State();
 
-  void AddRule(const Rule* rule);
-  const Rule* LookupRule(const string& rule_name);
-
   void AddPool(Pool* pool);
   Pool* LookupPool(const string& pool_name);
 
@@ -119,9 +116,6 @@ struct State {
   typedef ExternalStringHashMap<Node*>::Type Paths;
   Paths paths_;
 
-  /// All the rules used in the graph.
-  map<string, const Rule*> rules_;
-
   /// All the pools used in the graph.
   map<string, Pool*> pools_;